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F R Micraflex

F.R.MICRAFLEX FIBRE REINFORCED UV STABLE,WATERPROOFING MEMBRANE

BALCONIES

GUTTERING

ROOFING

F R MICRAFLEX is a fibre reinforced, UV stable, waterproofing membrane. It provides a tough, seamless membrane without the general use of reinforcement mat other than joints. F R MICRAFLEX bonds to a variety of substrates when applied according to directions. Its resilience remains stable over a large temperature range and allows for considerable movement in bridging cracks.

F R MICRAFLEX provides chemical and mechanical damage resistance due to its high build and high solids characteristics. F R MICRAFLEX when fully cured will withstand ponding water and is resistant to mould, mildew and microbiological attack.

SURFACE PREPARATION

All substrates must be sound, dry and free of dirt, oil, grease and other contaminants.Defects must be made good to give a smooth surface. New concrete must cure for a minimum of 28 days. New brickwork and render must be left for 7 – 14 days.

For Internal Wet Areas compliance to the Building Code of Australia (BCA) and AS 3740/ 2004 – Waterproofing to Internal Wet Areas is required. Timber flooring substrates should be avoided. If a timber substrate is unavoidable then over sheeting with 6mm fibre-cement sheet is a preferred option. Substrates should be screw fixed – not nailed.

Because of the wide variety of substrate types and site conditions it is always advisable to check adhesion to the substrate by testing on a sample area before commencement.

Detailing

Seal all joints and gaps with a suitable low modulus polyurethane sealant in accordance with the manufacturers instructions;

Reinforcing cloth – 150mm width centrally located and wet embedded over joint, is required in all situations where movement may occur. For example: shrinkage or structural cracks, penetrations and outlets,prepared joints or areas of high stress, corners and flanges, joints in sheets, etc.

Priming

Most surfaces should be primed with MICROL ACRYLIC PRIMER. Use MICROL SOLVENT PRIMER for bituminous felts, and metal primers for metal. Alternatively prime porous surfaces using FLEXIPRO diluted; 1 part to 2 parts water, allow 1 hour to dry.

APPLICATION

The membrane may be applied by brush or roller.

Apply multiple coats to achieve the desired thickness and allow to fully dry between coats.

Material usage should be 1.25 – 1.5 litres per square metre.

Application should not be started if rain is expected to commence within 12 to 24 hours. If rain damage occurs re-coat damaged sections when dry.

Water borne membrane products must be allowed to cure completely and in depth prior to the application of tiles or similar products. Because environmental conditions fluctuate it is impossible to be concise when forecasting the curing time of the membrane. A minimum of 7 days must be allowed for external applications in cool, humid or wet weather. Lack of complete curing may result in the membrane re-emulsifying under paving.

Tile and other paving mediums may be laid over the cured membrane surfaces on a cement mortar bed or with a 2 part water based adhesive.

About Waterproofers

WP Waterproofers is a company built on three generations of building experience. Jery’s grandfather and father were expert builders and waterproofers, and for over 25 years Jery has built a respected.. more